Pump.



PATENTED NOV. 3, 1903.

0. c. WORTHINGTONQ PUMP. v

APPLICATION FI'LED APR. 4. 1900. RENEWED APR. 15. 1903.

N0 MODEL.

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UNITED STATES Patented November 3, 1903.

PATENT OFFICE.

PUMP.

SPECIFICATION forming part of Letters Patent no. 742,949, dated November 3, 1903.

Application filed April 4, 1900. Renewed April 16,1903. Serial No. 152,802. (No model.)

To all whom, it may concern: i

Be it known that I, CHARLES C. WORTH- INGTON, a citizen of the United States, residing atDunnfield, county of Warren,and State of New Jersey, have invented certain new and useful Improvements in Pumps, fully described and represented in the followingspecification and the accompanying drawingsforming a part of the same.

The object of the present invention is to provide an improved pump construction especially adapted for steam and other power pumps which shall be very light,compact, and cheap and in which a very large valve area and capacity for the size of the pump shall be secured and all the valves be readily accessible for purpose of renewal or repair. I secure this result by the use of a cylindrical Valveplate inclosing the pump piston or plunger, with the suction-chamber and suction-valves arranged about the plunger and preferably occupying one-half of the cylindrical valveplate and the force-chamber and force-valves extending about and completing the circuit of the plunger. With this construction I preferably cast the valve-plate, chamber-partitions, and ends of the pump integral, and the pump-casing can then be cheaply and most efficiently completed by attaching to this casting the cylinder-heads and a cylindrical plate forming the outer wall of the suction and force chambers. In low-pressure pumps, for which the construction is especially designed, a very light casting and a comparatively thin outside cylindrical plate may be used, so that the construction may be very light and cheap of manufacture. The removal of the outside cylindrical plate thus gives ready and convenient access to all the valves.

For a full understanding of the invention a detailed description of a construction embodying all the features of the same in their preferred form will now be given in connection with the accompanying drawings, forming a part of this specification, and the features forming the invention will then be specifically pointed out in the claims.

In the drawings, Figure 1 is alongitudinal vertical section of the pump. Fig. 2 is a crosssection on the line 2 of Fig. 1. Fig. 3 is a vertical side elevation of the same with the outer casing broken away.

Referring to said drawings, the pump consists of the central chamber or cylinder of the pump, which is divided by the partition or diaphragm 10 to form the opposite ends of the cylinders,and the pulsation-chambers for the opposite sides of the pump, within which partition or diaphragm movesthe plunger A, having the plunger-rod a passing through the cylinder-head 11 at the operating end of the pump and preferably having also the guide rod b at the opposite end passing through the cylinder-head 12, so as to aid in guiding and supporting the plunger A, thus enabling the pump-frame to be made lighter. The plunger A is shown as formed in hollow halves secured together by central circumferential flanges 5 and bolts 6; but any other suitable plunger or piston may be used.

The partition 10 is formed integral with a cylindrical valve-plate 13, extending entirely about the plunger A and forming outside the valve plate the suction chamber B in the lower part of the pump, and the forcechamber 0 in the upper part of thepump, these two chambers. being shown as of substantially equal size. These chambers B O are divided by partitions 14 15, running longitudinally of the pump, and the outer Wall of these chambers is formed by a cylindrical plate 16, supported by these partitions and by supports 17, 14:, and 15 on valve-plate 13 suction and force main connections D E being formed on or secured to the plate 16 at respectively the bottom and top of the pump. Suitable hand-holes 18 in plate 16 are also provided for access to the valves, whichare shown as the common voluntary valves, mounted on Valve-seats 1, 0 being the suction-valves and d the force-valves. The partition 10 is preferably strengthened by ribs 2, running longitudinally of the pump, and the valve-plate 13 by longitudinal ribs 3 and circumferential ribs 4, enabling the required strength to be secured with a thin and light partition and valve-plate. It will be seen that all the valves may be inserted most readily in making the pump on account of the free access afforded before the outer casing or plate 16 is put on and that renewal or repair of any of the valves is convenient on account of the readiness of removal of the plate 16 and free access to the valves thus afforded.

The plate 16 is shown as made-in two semicylindrical parts meeting on the partitions 14 15, these two parts of the casing being secured by nuts or bolts in any suitable manner,so as to be readily removable in two parts. If formed of a single plate bent around the pump, it may be readily removed also by the springing out or pulling out of the edges of the plate when the holding nuts or bolts are removed, so that the cylinder is thus en larged and may be slipped over the end of the pump.

As shown in the drawings, a single casting forms the pu mp ends 19,to which the cylinderheads 11 12 are secured, the valve-plate 13 and the partition 10 thereon, partitions 14 15, and supports 17, and the outer casing 16 of the pump consists of a single plate secured upon the edges of the end frames, on which plate are secured the suction and force main connections. It will be understood, however, that the broader features of the invention may be embodied in a construction in which the parts are formed otherwise than as shown and described, although the specific construction illustrated is especially desirable as securing the desired strength with a very light and cheap construction and in itself forms a specific part of the invention.

What I claim is- 1. Apumphavingacylindricalplateinolosing the pump-plunger and pulsation-chambers with suction and force valves therein arranged circularly about the plunger, an outer cylindrical casing removable without removplunger, substantially as described.

3. A pump having the cylindrical valveplate 13-carrying suction and force valves 0, d arranged circularly about and on opposite sides of the plunger, partitions 14 outside said valve-plate, pump ends 19, and outer casing 16 mounted on said partitions and pump ends and removable without removing the pump ends and forming suction and force chambers B, 0 outside the valve-plate, substantially as described.

4. A pump having the cylindrical Valveplate 13 carrying suction and force valves 0, 01 arranged circularly about and on opposite sides of the plunger, partitions 14 outside said valve-plate, pump ends 19, and outer casing 16 mounted on said partitions and pump ends and removable Without removing the pump ends and forming suction and force chambers B, 0 outside the valve-plate, and suction main connection D and force main connection E on said casing 16 at opposite sides of the pump, substantially as described.

5. A pump having the pump ends 19, cylindrical valve-plate 13, pulsation-chamber partition 10 and suction and force chamber partitions 14, 15 cast integral, and separate outer cylindrical casing 16 removable without removing the pump ends, substantially as described.

6. A pump having the pump ends 19, cylindrical valve-plate 13, pulsation-chamber partition 10 and suction and force chamber partitions 14, 15 cast integral, and separate outer cylindrical casing 16 removable without removing the pump ends, said valve-plates being provided with longitudinal and circu mferential strengthening-ribs 3, 4, substantially as described.

7. A pump having the cylindrical valveplate 13, partitions forming suction and force chambers outside said valve-plate, and outer cylindrical casing 16 removable without removing the pump ends and with suction and force main connections on said casing, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

CHARLES W'ORTHINGTON.

Witnesses:

O. J. SAWYER, T. F. KEHOE. 

